New to Poker Tracker

I set up Poker Tracker about a week ago for Party Poker and love it. I got Gametime+ and like that too. My favorite feature is datamining 10 tables on Party every night. I have been bonus whoring and want to use PT on my other sites too.

Which sites does Poker Tracker support?
Which sites store hand histories on your hard drive?
Of those sites, which ones store hand histories from tables you observe?

Thanks a ton.

How convenient, PT has a forum of it's own where these types of questions get answered much more efficiently. Linky (http://www.pokertracker.com/forum/)

Thanks.